Door stop



v July 6, A Q G|ETL 2,086,474

DOOR STOP Filed July 29, 1935 Bv mywf@ ATTORNEY Patented July 6, 1937 UNITED STATES DOOR STOP Albert C. Gietl, Springeld, Ill.

Application July 29,

6 Claims.

This invention relates to door stops, and its general object is to provide a stop for securely holding a door in any desired open position.

A further object of the invention is to provide a door stop that is adjustable with respect to the floor, so as to assure positive gripping action with the latter at all times.

Another object of the invention is to provide a door stop that is simple in construction, inexpensive to manufacture, easy to install and extremely efficient in use and service.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be 'nereinaiter fully described,l illustrated in the accompanying drawing and specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanying-drawing wherein like characters denote like or corresponding parts throughout the several views, and in which:

Figure 1 is an edge View of a door showing the application of my stop thereto.

Figure 2 is a sectional view taken approximately on line 2-2 of Figure 1.

Figure 3 is a sectional view taken approximately on line 3 3 of Figure 2.

Figure 4 is a sectional view-taken approximately on line 4-4 of Figure 2.

Figure 5 is a sectional View taken approximately on line 5 5. of Figure 3.

Figure 6 is a sectional view taken approximately on line 6-6 of Figure 2.

Referring to the drawing in detail, the letter A indicates a door to which is attached the stop which forms the subject matter of the present invention, and while my stop is primarily designed for swinging doors, in order to hold them in any desired open position, it can be applied to any type of door for that purpose, as will be apparent.

In installing my stop or device toa door, a recess is provided in the outer free edge thereof within which is mounted a casing I, the latter having apertured ears 2 formed with the upper and lower walls of the casing and disposed at right angles thereto. The ears 2 are countersunk in the door as shown, and passing through the ears 2 are screws for securing the casing within the recess. The ears 2 form a part of a frame which of course is countersunk in its entirety.

The front of the casing I is open, but a. closure 3 hinged as at 4 is provided therefor and the closure has a recess 5 arranged in its free lower end to facilitate the opening thereof, as

1935, Serial No. 33,759

will be apparent. The inward movement of the vclosure is limited by studs 6 formed with the casing at the corners thereof.

The rear portion of the casing is in the form of a cylinder 'I having a vertical slot arranged in the forward portion thereof for the passage of the rear end of a lever'9, the lever having a slot I Il arranged longitudinally therein and an enlarged head I I that is guided between uprights I2 extending vertically of the casing, as best shown in Figures 2 and 4 thereof. The head is arranged at the forward end of the lever for disposal adjacent to the open end of the casing.

The lever 9 does not have any iixed fulcrurn point but is suspended within the casing through the instrumentality of coil springs I3 which have their outer ends terminating in eyes mounted in lugs I4 extending inwardly from the upper and lower walls of the casing, as best shown in Figure 2. 'Ihe inner ends of the coil springs are iixed to slides I5 which are slidably mounted on the reduced portions of the lever provided by the slot I0.

The inner end of the lever terminates into a tongue I6 which is received in a slot of a head Il and pivotally mounted on a pin that traverses the slot as best shown in Figure 3. The head is movable in the cylinder 1 and is provided with a threaded bore to receive the threaded upper end of a rod I8, depending therefrom.

Mounted in a recess in the bottom of the door is a cylindrical casing I9 which is held therein by screws 20 or the like passing through openings in an attaching plate 2I formed on the cylindrical casing I9. The plate is countersunk as shown, and mounted for slidable movement in the casing I9 is what may be termed a plunger 22 which is of a size to snugly lit the casing I9, as shown.

The plunger is hollow and bridging the same is a disk 23 to which is attached a sleeve 24 that rises therefrom and is provided with a threaded bore'to threadedly receive the lower end of the rod I8. It will be noted that the threaded lower end of the rod I8 is slotted longitudinally as at 25 for the purpose of receiving the wedged inner end of a set screw 26, the latter being threaded in a projection 2'I extending forwardly from the sleeve 24, as best shown in Figure 3.

Communicating with the recess of the casing I9 is an opening 28 arranged in one side of the door, so that access can be had to the set screw 26 and the opening 28 is provided with a pivoted closure 29.

Mounted in the plunger 22 is the reduced upper end of a resilient cushioning element or buffer 30 which is held in the plunger by penetrating prongs extending into the reduced upper end thereof, as shown in Figures 3 and 5. The cushioning element is of course formed from rubber or like material and extends below the lower edge of the plunger to contact the floor, when the door stop is in operative position. as shown in Figure 2.

In the operation of my door stop, the lever 9 is moved from the full line position of Figure 2., to the dotted line position thereof and when in the latter position, the cushioning element contacts the floor, due to the fact that such movement of the lever will lower the plunger 22 within its cylinder as shown in dotted lines. It is of course understood that the reverse movement of the lever is necessary in order to dispose the stop in its inoperative position. During the movement of the lever 9, it will be obvious that the slides l5 reciprocate on the reduced portions, inY

full anddotted lines in Figure 2, as well as provides a floating fulcrum means therefor, but likewise a meansfor holding the stop lin either its operative or inoperative positions.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims. Y.

What I claim is:

l. A door stop comprising a casing, a lever arranged in said casing, coil springs having their outer ends connected to opposite walls of the casing, means slidably mounted on the lever for alternate movement in opposite directions and connected to the inner ends of the coil springs for cooperation with the latter for suspending and supporting the lever normally inclined with respect tosaid Walls and to provide floating fulcrum means therefor for oscillation thereof, said casing having an opening vtherein providing access means to the lever for manually oscillating the latter, a hinged closure for the opening, iloor engaging means, and means connecting the lever with the floor engaging means for operating the latter into and out of engagement with the floor.

2. A door stop co-mprising a casing, a lever arranged in said casing, coil springs having their ends secured to the upper and lower portions of said casing, means slidably mounted on said lever for alternate movement in opposite directionsl and secured to the coil springs for cooperation therewith for suspending and supporting the lever normally inclined to a horizontal plane and to provide iloating fulcrum means therefor for oscillation thereof, an enlarged head on one end ofthe lever for manually oscillating the same, guide means for the lever and mounted in the casing upon opposite sides of the head, a cylindrical casing, a plunger mounted in the cylindrical casing, a rod secured to the plunger, means for pivotally connecting the rod and lever, and floor engaging means secured to the plunger for movement into and out of engagement with the iioor upon oscillation of the lever.

3. In a door stop including a cylinder having a plunger therein, with a rod adjustably connected to the plunger and cushion floor engaging means carried by the plunger, a casing having an open Aend, a hinged closure for said end, a lever in the casing and having a slot centrally and longitudinally arranged therein, coil springs having one of their ends iixed within the casing, means slidably mounted in the slot of the lever and secured to the opposite ends of said coil springs for cooperation therewith for suspending and supporting the lever normally inclined to a hori- Zontal plane to provide oating fulcrum means therefor for oscillation thereof, and said lever being connected to the rod for moving the floor engaging means into and out of engagement with respect to the oor upon oscillation of the lever.

4. A door stop comprising a lever, resilient suspending means supporting the lever normally inclined to a horizontal plane and being slidably mounted thereon to provide a floating fulcrum therefor for oscillation thereof, oor engaging means, and means for connecting the iloor engaging means and the lever for disposing the floor engaging means into and out of contact with the oor upon oscillatory movement of the lever. y r

5. A door stop comprising a casing, a lever within said casing, spring meansconnected to the casing and slidably mounted on the lever for suspending and supporting the latter normally inclined to a horizontal plane and to-provide floating fulcrum means therefor for oscillation thereof, said casing having an opening therein providing means of access to the lever for oscillating the latter, floor engaging means, means for connecting the lever and the floor engaging means for disposing the latter into and out of engagement with respect to the floor, and adjusting means for the connecting means.

6. A door stop comprising a casing, a lever arranged in saidy casing, spring means slidably mounted ron'the lever and connected to the top and bottom walls of the casing for suspending and supporting the lever normally inclined with respect to said walls and to provide floating fulcrum means for the lever for oscillation thereof, said casing having an open end providing access means to the lever, a closure for the opening, guiding means for the lever, floor engaging means, and adjustable means connecting the lever with the floor engaging means for disposing the latter into and out of contact with the floor upon oscillation of the lever. f f

ALBERT C. GIETL.. f 

